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Mostrando ítems 11-20 de 51
A new space-vector-modulation algorithm for a three-level four-leg npc inverter
(2017)
For power conversion systems interfaced to four-wire supplies, four-leg converters have become a standard solution. A four-leg converter allows good compensation of zero-sequence harmonics and full utilisation of the dc-link ...
Controle preditivo de conjunto finito para inversores de fonte dividida (Split-Source) com quatro pernas
(Universidade Federal do PampaUNIPAMPABrasilCampus Alegrete, 2018)
Three-Port Full-Bridge Bidirectional Converter for Hybrid DC/DC/AC Systems
(IEEE, 2020)
Sustainable solutions such as renewable energies, distributed generation, energy storage, and electric vehicles require power conversion and advance control techniques. This process is usually done in two stages by more ...
A Design Methodology of Multiresonant Controllers for High Performance 400 Hz Ground Power Units
(Institute of Electrical and Electronics Engineers, 2019)
In aerospace applications, a ground power unit has to provide balanced and sinusoidal 400 Hz phase-to-neutral voltages to unbalanced and nonlinear single-phase loads. Compensation of high-order harmonics is complex, as the ...
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks
(2020-09-01)
Considering the high penetration of distributed generators in low-voltage grids, establishing a coordinated operation of their grid-tied inverters has become imperative to move towards the implementation of smart grids. ...
Fault-Tolerant inverter for Power Flow Control in Variable-Speed Four-Wire Permanent-Magnet Generators
(Institute of Electrical and Electronics Engineers, 2015-11)
A strategy for fault detection and tolerance on the inverter that controls power flow in variable-speed permanent-magnet generators is proposed in this paper. The performance of the proposed strategy is analyzed in two ...
Selective Sharing of Load Current Components Among Parallel Power Electronic Interfaces in Three-phase Four-wire Stand-alone Microgrid
(2017-05-09)
This paper investigates selective sharing of load current components among the parallel operation of distributed generators (DGs) in three-phase four-wire stand-alone microgrids. The proposed control method is based on ...
An overview of four-leg converters: topologies, modulations, control and applications
(IEEE, 2022)
In three-phase unbalanced systems, where the circulation of zero sequence current is necessary, four-leg converters provide a neutral connection for single-phase or other unbalanced loads typically utilized in three-phase ...
Cooperative Control of Multi-Master-Slave Islanded Microgrid With Power Quality Enhancement Based on Conservative Power Theory
(Ieee-inst Electrical Electronics Engineers Inc, 2018-07-01)
Cooperative control of power converters in a microgrid offers power quality enhancement at sensitive load buses. Such cooperation is particularly important in the presence of reactive, nonlinear, and unbalanced loads. In ...
Estudo da aplicação de transformadores intercelulares em inversores de tensão
(Universidade Federal de Minas GeraisUFMG, 2014-07-07)
Interleaved inverters are a paralleling strategy that allows the construction of high power inverters by using components with lower power rating; it also reduces the harmonic distortion of the output voltage and improves ...